GMC Q&A

1990 GMC 1500 Pickup Question: addition info

I failed to mention i recieved a code 42 sorry. also it's a automatic. stalls intermittent, starts back up fine, changed dist cap rotor and timing mod check plug wires, oil, coolant. 137,000 great miles till now. code gave 3 different possabilities but am not an expert. any help?thanks in advance

I would recommend a complete distributor overhaul or replacement with a quality rebuilt unit to correct the code 42 and stalling condition on your 1990 GMC 1500 Pickup. This issue has been reported in ReplairPal Problem Reports - http://repairpal.com/internal-faults-in-distributor-can-cause-engine-problems-439